<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			body{
				height: 10000px;
				width: 10000px;
			}
			#adv{
				height: 199px;
				width: 100px;
				background-color: #00008B;
				position: absolute;
				right: 0px;
				top: 20px;
			}
		</style>
	</head>
	<body>
		<div id="nav" style="height: 140px; background-color: #00FFFF;"></div>
		<div id="adv">广告</div>
	</body>
</html>
